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- astronomy and astrophysics11
- fos: physical sciences11
- space and planetary science11
- astrophysics9
- astrophysics - cosmology and nongalactic astrophysics8
- cosmology and nongalactic astrophysics (astro-ph.co)8
- physics8
- astrophysics::cosmology and extragalactic astrophysics7
- astrophysics - astrophysics of galaxies6